12-letter words containing b, o, u, r, g, i
- unforgivably — in an unforgivable manner
- unobligatory — required as a matter of obligation; mandatory: A reply is desirable but not obligatory.
- urbanologist — a sociologist specializing in urban life and problems
- urobilinogen — a colourless substance produced by bacterial degradation of the bile pigment bilirubin in the intestine and which produces urobilin when oxidized
- youngberries — Plural form of youngberry.